Java Caching System

Java Caching System (JCS) is a distributed caching system
written in Java. This software is designed to speed up applications by
providing a means to manage cached data of various dynamic natures. It
uses a combination of memory, disk, lateral, and remote components to
provide data integrity and session failover across webservers.

JCS is part of the Jakarta Project, an umbrella project from
the Apache Software Foundation.